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Contact type CPU card easy to expand and with USB interface

A USB interface, contact technology, applied in the field of information security, can solve the problems of limited scalability, single function of the contact CPU card, etc., to reduce costs, increase security, easy to implement and popularize.

Inactive Publication Date: 2013-09-04
HANGZHOU SYNOCHIP DATA SECURITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problems of single function and limited expandability of the existing contact CPU card, and provide a contact CPU card that is easy to expand and has a USB interface.

Method used

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  • Contact type CPU card easy to expand and with USB interface
  • Contact type CPU card easy to expand and with USB interface
  • Contact type CPU card easy to expand and with USB interface

Examples

Experimental program
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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0027] An easy-to-extend contact CPU card with a USB interface according to the present invention mainly includes a CPU card chip, a storage module, an interface module and an increased USB interface, an expansion processor, an expansion storage module, an information security module, and a fingerprint modules and display modules. Structural diagram such as figure 2 Shown:

[0028] CPU card chip and storage module: The CPU card chip and storage module are the components that make up the traditional CPU card.

[0029] Interface module: The interface module complies with the ISO7816 standard. At the same time, C4 and C8 are expanded as USB signals. C1, C5, C4, and C8 form a standard USB interface.

[0030] Extended processor: a processor independent of the CPU card chip, a processor dedicated to implementing extended applications, which solves the problem t...

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Abstract

The invention relates to a contact type CPU card easy to expand and with a USB interface. The contact type CPU card easy to expand and with the USB interface comprises a CPU card chip, a storage module and an interface module. The USB interface, an expending processer, an expanding storage module, an information security nodule, a fingerprint module and a display module are additionally arranged. The interface module meets the ISO7816 standard, and meanwhile a C4 and a C8 are expanded as signals of a USB, and a C1, a C5, the C4 and the C8 form the standard USB interface. The contact type CPU card easy to expand and with the USB interface has the advantages that independence of application is expanded, the expanding functions is achieved in common expanding application through the USB and the independent expanding processor and the storage module, and neither processing capacity of the CPU card chip nor safety of data in a CPU card is affected; cost of expanding the application is reduced and the CPU card is easy to promote due to the fact that cost of the USB interface is far lower than the cost of a 7816 converting USB device; safety of the CPU card is improved; human-card exchange is provided, a human-card interactive mode is provided through the display module, so that traditional application and the expanding application can be more humanized.

Description

technical field [0001] The invention relates to the field of information security, in particular to an easy-to-expand contact CPU card with a USB interface. Background technique [0002] CPU card, also known as smart card, has a microprocessor CPU, a storage unit (including random access memory RAM, program memory ROM (FLASH), user data memory EEPROM) and a chip operating system COS in the integrated circuit of the card. The CPU card equipped with COS is equivalent to a microcomputer, which not only has the function of data storage, but also has the functions of command processing and data security protection. [0003] The CPU card can be used in many fields such as finance, insurance, traffic police, and government industries. It has the characteristics of large user space, fast reading speed, and supports one card for multiple purposes, and has passed the certification of the People's Bank of China and the State Commercial Secret Committee. The appearance of the CPU card ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/16G06F21/32
Inventor 苗欣李昀
Owner HANGZHOU SYNOCHIP DATA SECURITY TECH CO LTD
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